Aldeyra Therapeutics, Inc ALDX

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Aldeyra Therapeutics, Inc. - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 1.5200 · FX 1 USD = 1.288650 SGD · about SGD 1.9587 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 5.32 → 1.52 · -71.4%
5.8903.5651.240 1 2 3 4 5 6 7 8 9 10 11 12,13 14 15 16 17 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 26 Jul 2025 — 27 Jul 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
Weekend
Weekend
1.6000 1.6000 1.4750 1.5200 1,125,000
1.7000 1.7200 1.5400 1.5500 1,414,500
1.7500 1.7550 1.6600 1.7000 1,086,600
1.7100 1.7800 1.6900 1.7500 1,107,700
1.7000 1.7600 1.6500 1.7000 1,130,900
Weekend
Weekend
1.7000 1.7400 1.6500 1.6900 1,170,600
1.8400 1.8500 1.6000 1.7200 2,597,200
17 · 8-K After-hours · 16:46 ET 8-K ↗
1.9200 1.9650 1.9000 1.9200 913,100
1.9500 1.9800 1.9000 1.9300 837,600
2.0300 2.0600 1.9000 1.9300 1,377,400
Weekend
Weekend
2.2800 2.2850 2.0600 2.0700 1,227,300
2.1400 2.3100 2.0600 2.3000 2,084,700
2.2200 2.2400 2.0650 2.1300 3,097,500
2.2800 2.3500 2.1900 2.2300 2,137,100
2.2500 2.3600 2.2090 2.2800 1,199,800
Weekend
Weekend
No trading
2.4100 2.5300 2.2500 2.2700 2,116,700
2.1300 2.5300 2.1050 2.4300 3,444,000
2.0500 2.1600 2.0500 2.1300 2,185,300
1.8400 2.0850 1.8200 2.0500 1,917,700
Weekend
Weekend
1.8200 1.8800 1.7100 1.8300 6,078,800
1.9400 1.9600 1.7550 1.8000 2,047,700
2.0600 2.0900 1.8450 1.9000 2,126,000
2.0000 2.2100 1.9990 2.0200 2,434,600
1.9500 2.1500 1.9500 2.0500 1,690,800
Weekend
Weekend
No trading
1.8700 1.9900 1.8700 1.9600 2,185,000
1.7700 1.9200 1.7700 1.8300 1,289,100
1.7700 1.8400 1.7450 1.7800 926,900
1.8100 1.8330 1.7400 1.7600 616,600
Weekend
Weekend
1.7100 1.7750 1.6950 1.7600 830,700
1.6800 1.7300 1.6600 1.7100 1,199,800
1.7100 1.8000 1.6500 1.6900 916,700
16 · 8-K Next filing day · accepted 09 Jun, 20:30 ET 8-K ↗
1.7600 1.8300 1.6800 1.7200 961,300
1.8300 1.9650 1.7300 1.7400 1,788,400
Weekend
Weekend
1.7600 1.7600 1.6150 1.6300 981,500
1.8600 1.9300 1.7450 1.7600 1,073,800
1.6400 1.8700 1.5900 1.8600 2,027,700
1.6700 1.6870 1.5800 1.6400 959,600
1.7400 1.7400 1.6200 1.6600 786,600
Weekend
Weekend
1.7400 1.7500 1.6700 1.7500 579,500
1.7100 1.7900 1.6900 1.7500 1,221,900
1.7500 1.7800 1.6800 1.7100 896,800
1.5400 1.7800 1.5300 1.7800 1,975,900
No trading
Weekend
Weekend
1.5700 1.6150 1.5300 1.5500 472,900
1.5200 1.5900 1.5100 1.5900 629,100
1.5400 1.5700 1.5050 1.5500 840,100
1.5800 1.5800 1.5200 1.5400 710,800
1.6700 1.6900 1.5800 1.6000 1,043,900
Weekend
Weekend
1.6300 1.7050 1.6000 1.6800 1,313,800
1.7100 1.7100 1.6350 1.6600 709,700
1.7000 1.7200 1.6500 1.7000 1,331,300
1.7500 1.8050 1.7000 1.7100 718,600
1.7200 1.7700 1.7100 1.7600 713,200
Weekend
Weekend
1.7000 1.7700 1.7000 1.7300 827,600
15 · 10-Q After-hours · 16:02 ET 10-Q ↗
1.7300 1.7470 1.6850 1.7300 646,000
1.7000 1.8600 1.6900 1.7400 1,148,100
1.6300 1.7300 1.5900 1.7200 1,046,300
1.5700 1.6800 1.5700 1.6200 791,100
Weekend
Weekend
1.5200 1.6000 1.5090 1.5900 751,400
14 · 8-K Pre-market · 08:00 ET 8-K ↗
1.5100 1.6000 1.4900 1.5200 1,179,200
1.5500 1.5900 1.4700 1.5000 706,300
1.5700 1.6200 1.5600 1.5700 726,300
13 · DEFA14A After-hours · 16:13 ET DEFA14A ↗ 12 · DEF 14A After-hours · 16:10 ET DEF 14A ↗
1.5400 1.6000 1.5200 1.5800 1,198,200
Weekend
Weekend
1.5800 1.5900 1.5100 1.5500 1,481,800
1.7000 1.7000 1.5700 1.6000 1,510,600
1.6800 1.7100 1.6500 1.7000 1,079,900
1.7900 1.8350 1.6700 1.6800 1,583,100
11 · 8-K After-hours · 17:00 ET 8-K ↗
1.7880 1.8150 1.7510 1.7800 980,800
Weekend
Weekend
1.8100 1.8600 1.7900 1.8000 1,303,800
1.8200 1.8300 1.7100 1.8000 1,309,600
1.8000 1.8700 1.7700 1.8300 1,825,300
1.8000 1.8900 1.7500 1.7900 2,032,000
1.7200 1.8350 1.7000 1.8000 1,489,100
Weekend
Weekend
1.6000 1.8080 1.5980 1.7800 2,256,900
1.5700 1.6250 1.5200 1.5900 2,649,100
1.5900 1.6200 1.5500 1.5700 1,333,500
1.5100 1.5600 1.4800 1.5200 1,303,600
1.6600 1.6600 1.5200 1.5400 2,049,500
Weekend
Weekend
No trading
1.6900 1.7200 1.6300 1.6600 1,820,500
10 · 8-K After-hours · 16:25 ET 8-K ↗
1.7100 1.8700 1.6800 1.6800 4,706,000
1.7300 1.8100 1.6700 1.6900 2,395,400
1.7600 1.7800 1.6800 1.6800 1,900,500
Weekend
Weekend
1.8100 1.8400 1.7550 1.7700 2,608,700
1.8100 1.8760 1.7300 1.8400 2,979,800
1.9800 2.0200 1.7600 1.8500 4,540,700
2.2500 2.3300 1.8600 1.8700 7,333,300
1.8800 2.3200 1.8250 2.2300 7,071,600
Weekend
Weekend
1.9300 2.0300 1.7900 1.8100 10,645,100
1.3900 1.8500 1.3700 1.8300 12,004,900
1.2000 1.5600 1.1600 1.4200 16,700,900
1.1200 1.5100 1.0700 1.2400 52,525,600
9 · 8-K Pre-market · 08:39 ET 8-K ↗
4.3800 4.4500 4.0650 4.2300 3,732,800
Weekend
Weekend
4.6900 4.7200 4.0100 4.1250 3,399,700
4.9900 4.9900 4.5150 4.6700 2,066,200
5.1000 5.1000 4.7400 4.9400 1,622,000
5.3500 5.6000 4.9800 5.0100 1,610,400
4.8000 5.3000 4.7500 5.2600 1,376,600
Weekend
Weekend
4.6000 4.8800 4.4100 4.8000 1,215,700
5.1200 5.1200 4.3650 4.6500 2,607,600
5.1800 5.3950 5.1500 5.1950 765,500
5.5000 5.5200 5.0550 5.1100 871,500
5.4000 5.7400 5.3150 5.6200 881,300
Weekend
Weekend
8 · 10-K After-hours · 16:47 ET 10-K ↗
5.4600 5.5020 5.3050 5.4600 1,016,200
5.4700 5.5350 5.3500 5.5000 939,400
5.2400 5.6200 5.2100 5.4900 1,267,200
4.9700 5.3400 4.9550 5.2100 1,045,600
4.9100 5.1000 4.8500 4.9900 436,400
Weekend
Weekend
5.0200 5.0800 4.9090 4.9500 483,400
5.0100 5.1300 4.9200 5.0800 726,800
5.1500 5.1900 4.9100 5.0200 660,100
5.2400 5.3500 5.1250 5.1500 599,400
No trading
Weekend
Weekend
5.2900 5.4400 5.1500 5.2800 831,700
5.3500 5.5600 5.1550 5.2500 1,067,800
5.5000 5.5200 5.2800 5.3200 910,700
5.5700 5.6700 5.4500 5.4800 588,400
5.5300 5.6550 5.4100 5.5600 365,200
Weekend
Weekend
5.2100 5.6100 5.1500 5.5300 974,100
5.1900 5.4400 5.0750 5.0900 607,500
5.4500 5.4790 4.9200 5.2200 935,800
5.4500 5.6000 5.3100 5.4100 556,400
5.3200 5.5900 5.2500 5.4300 356,000
Weekend
Weekend
5.4500 5.9300 5.2650 5.3600 742,900
5.4200 5.4400 5.2250 5.3200 525,400
5.5500 5.5500 5.3650 5.4200 595,700
5.2500 5.6500 5.2500 5.5400 865,300
5.1600 5.3100 5.0520 5.2300 620,300
Weekend
Weekend
5.2100 5.4300 5.0910 5.1900 1,256,100
5.0100 5.3900 4.9650 5.2200 958,400
4.7400 5.1300 4.7350 4.9900 1,192,900
4.5200 4.8250 4.3900 4.7500 1,020,000
No trading
Weekend
Weekend
4.3900 4.7400 4.2200 4.6300 1,634,900
4.2800 4.4500 4.2000 4.4100 835,600
4.1400 4.2950 4.0800 4.2400 593,900
4.1500 4.1550 3.9550 4.1400 527,500
4.0700 4.1900 3.9450 4.1300 617,500
Weekend
Weekend
4.2400 4.3270 4.0100 4.1100 643,500
4.1100 4.2000 4.0450 4.1800 548,700
4.0800 4.2700 4.0600 4.1600 883,400
4.2500 4.3140 4.0200 4.0600 1,118,400
4.7000 4.7590 4.1400 4.2400 1,213,500
Weekend
Weekend
5.1200 5.2050 4.6500 4.6700 1,116,600
No trading
7 · 8-K After-hours · 17:07 ET 8-K ↗
5.1700 5.2550 5.1100 5.1800 554,200
5.1600 5.2600 5.0350 5.1500 507,700
5.2600 5.3100 5.1300 5.1700 418,200
Weekend
Weekend
5.2800 5.3260 5.1000 5.3100 508,600
No trading
5.0500 5.3490 4.9780 5.2800 419,900
5.5000 5.5000 5.0050 5.0500 1,100,100
4.9400 5.7450 4.9000 5.5400 1,456,700
Weekend
Weekend
5.0200 5.1190 4.9300 4.9600 822,700
5.2700 5.6750 5.0000 5.0100 1,768,700
5.3750 5.4300 5.1400 5.2500 2,225,800
3.9500 5.4200 3.9400 5.3100 8,519,600
6 · 8-K Next filing day · accepted 15 Dec, 19:49 ET 8-K ↗
4.6200 4.7000 3.9700 3.9900 2,817,500
Weekend
Weekend
4.5900 4.9050 4.5100 4.5400 1,301,500
4.8100 4.8350 4.5650 4.5900 1,136,400
4.7700 4.8100 4.6750 4.7900 838,400
4.9400 4.9900 4.7750 4.7900 1,706,000
4.7500 5.0400 4.7500 4.9500 1,267,100
Weekend
Weekend
4.8800 4.9800 4.6700 4.7000 822,500
4.8900 5.0200 4.8100 4.8800 895,100
4.9700 5.0500 4.7100 4.8700 1,496,300
5.2200 5.2500 4.8400 4.8700 1,680,700
5.4200 5.4580 5.1850 5.2400 917,300
Weekend
Weekend
5.6000 5.6800 5.4500 5.4800 626,800
No trading
5.2700 5.6450 5.2300 5.5900 1,326,700
5.2500 5.3450 5.1750 5.2600 1,115,800
4.9700 5.3000 4.9500 5.2300 864,700
Weekend
Weekend
4.7100 5.0650 4.6950 4.9600 647,700
4.9900 5.0400 4.7100 4.7300 560,400
4.8900 4.9300 4.7250 4.8600 504,600
4.9500 4.9900 4.7950 4.9100 613,000
5.0500 5.1350 4.8500 4.9500 622,200
Weekend
Weekend
4.9400 5.1850 4.9200 5.0500 580,200
5.2700 5.2700 4.9850 5.0200 705,500
5 · 8-K Pre-market · 07:00 ET 8-K ↗
5.2100 5.3500 5.1800 5.3000 858,000
5.1300 5.2850 5.0000 5.2300 526,400
4.7400 5.1500 4.7100 5.1300 1,084,100
Weekend
Weekend
4.8100 4.8400 4.5250 4.6900 644,800
4.9400 4.9500 4.8000 4.8100 626,300
4 · 10-Q After-hours · 16:16 ET 10-Q ↗
4.9200 5.0100 4.8400 4.9300 370,400
5.1400 5.2700 4.8900 4.9200 558,200
5.0700 5.2400 5.0400 5.2300 639,700
Weekend
Weekend
5.0100 5.1100 4.8500 5.0700 568,800
5.0100 5.1500 4.8950 5.0300 1,045,800
5.1100 5.2250 5.0000 5.0550 491,600
5.1300 5.3500 4.6960 5.1400 1,259,700
3 · 8-K Pre-market · 07:00 ET 8-K ↗
5.2800 5.4000 5.1800 5.2300 510,800
Weekend
Weekend
5.2500 5.2850 5.1800 5.2400 310,300
5.1900 5.2600 5.1100 5.1800 333,400
5.4900 5.5200 5.0600 5.1900 759,900
5.4400 5.5500 5.2400 5.5100 638,100
5.3400 5.4600 5.2600 5.4400 585,100
Weekend
Weekend
5.3600 5.4400 5.2400 5.2600 562,400
5.7200 5.7900 5.3900 5.3900 601,800
5.3400 5.6800 5.3400 5.6600 818,400
5.1800 5.3600 5.1200 5.3400 393,000
5.4000 5.4700 5.1200 5.2500 781,600
Weekend
Weekend
5.6600 5.7100 5.3600 5.3900 981,700
5.6800 5.7800 5.6400 5.6700 676,700
5.6400 5.7700 5.4510 5.6200 923,300
5.5100 5.6600 5.4400 5.6100 647,400
5.7800 5.7800 5.3650 5.5100 705,900
Weekend
Weekend
5.3600 5.7500 5.2800 5.7400 1,030,300
5.2700 5.3590 5.1800 5.3200 410,800
5.1700 5.4300 5.1700 5.2400 411,400
5.2200 5.2300 5.1250 5.2200 398,500
5.1500 5.3100 5.1300 5.2100 501,700
Weekend
Weekend
4.9600 5.1300 4.9100 5.0700 590,300
5.0100 5.0100 4.8600 4.9500 421,500
5.1500 5.2600 4.9750 5.0100 558,700
4.9700 5.1600 4.9300 5.1100 672,100
4.9300 5.0100 4.8750 4.9500 860,200
Weekend
Weekend
5.0500 5.0500 4.7800 4.9300 1,501,100
4.9400 5.1050 4.9400 5.0100 746,500
4.9700 5.1050 4.8800 4.9000 846,500
5.1450 5.2300 4.9400 4.9600 796,500
5.4100 5.4300 4.9600 5.0900 1,599,400
Weekend
Weekend
5.5600 5.6200 5.3750 5.3900 661,000
5.5400 5.8250 5.4900 5.5600 734,900
5.8100 5.8750 5.4750 5.5400 613,500
5.7000 5.7700 5.6200 5.7600 1,012,300
5.5400 5.7950 5.4150 5.7000 673,200
Weekend
Weekend
5.5600 5.7000 5.3850 5.5600 1,063,000
5.8200 5.8800 5.5000 5.5300 1,550,300
5.6900 5.9300 5.6500 5.8300 514,300
5.8200 5.9050 5.7200 5.7500 452,100
No trading
Weekend
Weekend
5.8600 5.9110 5.6900 5.8400 453,100
5.9100 6.1750 5.8400 5.8600 995,600
5.8700 5.8900 5.7400 5.8500 475,900
5.8100 5.9150 5.7500 5.8900 521,700
5.8200 5.8900 5.6800 5.7700 561,900
Weekend
Weekend
5.8900 6.0500 5.6600 5.8100 1,026,500
5.5700 5.9650 5.5630 5.8800 884,400
5.5900 5.6750 5.5000 5.6300 501,400
5.4400 5.7300 5.3400 5.6000 1,185,100
2 · 8-K Pre-market · 07:00 ET 8-K ↗
5.4300 5.6500 5.3800 5.4400 739,000
Weekend
Weekend
5.3100 5.4000 5.2500 5.3900 913,400
5.2900 5.4100 5.2050 5.3000 574,600
5.3700 5.4900 5.2800 5.3700 869,000
5.3000 5.4900 5.2670 5.3600 830,500
5.2600 5.3700 5.0400 5.2500 1,033,300
Weekend
Weekend
5.1600 5.3150 4.9900 5.2600 1,314,000
1 · 10-Q After-hours · 16:03 ET 10-Q ↗
5.2800 5.3100 5.0800 5.1700 606,500
5.1800 5.2900 5.0500 5.2200 715,800
5.0700 5.2300 4.9900 5.1600 1,274,500
4.9000 5.2250 4.8000 5.0800 1,041,100
Weekend
Weekend
4.9000 4.9200 4.2300 4.8100 1,511,300
5.0600 5.1500 4.9400 4.9900 780,000
5.1400 5.3490 5.0000 5.0500 966,000
5.3000 5.3200 5.0200 5.0900 1,220,600
5.1500 5.3700 5.1200 5.3200 904,700
Weekend
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

17 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:46 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 09 Jun, 20:30 ET Summarise
15 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:00 ET Summarise
13 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
12 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:39 ET Summarise
8 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:47 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:07 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 15 Dec, 19:49 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
4 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
1 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise